Cheap flights from Ireland to London from £13

The cheapest month to fly to London Stansted Airport from Ireland is in September. Flight prices, which tend to average around £54, are often lower during this time because this is during the off-season. If you aren’t able to travel to London Stansted Airport during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of £57.

According to our data, Monday is the cheapest day to fly to London Stansted Airport from Ireland. The lowest ticket price found for a Monday departure recently was £68. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to London Stansted Airport is Wednesday, with ticket prices averaging around £106.

Our data shows that the cheapest Ireland to London Stansted Airport flights are usually those with departure times in the evening. Our users have found flights to London Stansted Airport in the evening for as low as £57. Flights in the morning are often more expensive, with an average ticket price of £97.

Fly from Knock Intl to London Stansted for the best Ireland - London Stansted flight prices

You are more likely to see cheaper flights to London Stansted Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London Stansted Airport for around £72 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Stansted Airport from Ireland for as low as £45 on momondo.

There is only 1 cabin class available to choose from on Ireland to London Stansted Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 16% of flights between Ireland and London have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

The number of flights available between Ireland and London Stansted Airport is 2 per day as of September 2026. The most frequent departure time is 20:00, with 37% of daily flights leaving at midday.

As of September 2026, there are 19 flights per week flying from Ireland to London Stansted Airport. The most common day of the week flights depart is Mon, with 79% of flights taking off on this day.